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SQL Problem--case-when

Source: Internet
Author: User
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1, there are the following table, please use the query statement to obtain the corresponding results

Id

Job

CreateDate

1

Development

2018-06-19

2

Operation and Maintenance

2018-06-20

3

Development

2018-06-19

4

Development

2018-06-20

The following results are obtained

CreateDate

Development

Operation and Maintenance

2018-06-19

2

0

2018-06-20

1

1

Answer:

SELECT

Aa.createdate,

SUM (

Case

When aa.job = ' development ' Then

1

ELSE

0

END

) ' Development ',

SUM (

Case

When aa.job = ' ops ' Then

1

ELSE

0

END

) ' operation and maintenance '

From

TestTable AA

GROUP by

Aa.createdate;

SQL Problem--case-when

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Related Keywords:
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